单选题
Which is the true choice about the web container request processing model（）？
The init method on a filter is called the first time a servlet mapped to that filter is invoked
A filter defined for a servlet must always forward control to the next resource in the filter chain.
Filters associated with a named servlet are applied in the order they appear in the web application deployment descriptor file
If the init method on a filter throws an UnavailableException， then the container will make no further attempt to execute it
单选题
Which statement， at line 16， retrieves an InputStream for the file /WEBINF/ nyresrc.bin（）？
new InputStream（“/WEB-INF/nyressrc.bin”）；
ctx.getInputStream（“/WEB-INF/nyresrc.bin”）；
ctx.getresourceAsStream（“/WEB-INF/nyresrc.bin”）；
new InputStream（“/WEB-INF/nyresrc.bin”）；
getClass（）.getResourceAsStream（“/WEB-INF/nyresrc.bin”）；
多选题
Which the three EL expressions， inserted at line 15， are valid and evaluate to "3"？ （）
${vals.2 }
${vals ["2"]}
${vals.index }
${vals[index]}
${vals} [index]
${vals.（vals.index）}
${vals[vals[index-1]]}
多选题
Which two classes or interfaces provide a getSession method？（）
javax.servlet.http.HttpServletRequest
javax.servlet.http.HttpSessionContext
javax.servlet.http.HttpsServletResponse
javax.servlet.http.HttpSessionBindingEvent
javax.servlet.http.HttpSessionAttributeEvent
单选题
Which HttpSession method stores an object in a session？（）
put（String name. Object value）
set（String name. Object value）
setAttribute（String name. Object value）
putAttribute（String name. Object value）
addAttribute（String name. Object value）
单选题
A developer is designing a web application that must support multiple interfaces， including： • an XML web service for B2B • HTML for web-based clients • WML for wireless customers Which design pattern provides a solution for this problem？（ ）
Session Façade
Business Delegate
Data Access Object
Model-View-Controller
Chain of Responsibility
多选题
Which two are true？ （）
Tag files can only be accessed using a tagdir attribute.
The sort.jsp page translates successfully and invokes the tag defined by beta.tag.
The sort.jsp page produces a translation error because a taglib directive must always have a uri attribute.
Tag files can only be placed in /WEB-INF/tags， and NOT in any subdirectories of /WEB-INF/tags.
The tagdir attribute in line 2 can be replaced by a uri attribute if a TLD referring to beta.tag is created and added to the web application.
单选题
What is the result？（）
The code compiles and “s=” is printed.
The code compiles and “s=null” is printed.
The code does not compile because Strings is not initialized.
The code does not compile because because Strings cannot be referneed.
The code comiles.butt a NullPointerException is thrown when toString is called.
单选题
When is the Float object. Created in line 3， eligible for garbage collection？（）
just after line 5
just after line 6
just after line 7
just after line 8 （that is . as the method returns）
单选题
What is the result？（）
An error occurs during page translation.
Translation is successful， but nothing is included in the response.
Both “10 x 5 = 50” and “2 * 3 = 6” are included in the JSP response.
The text “10 x 5 = 50” is included in the JSP response， but “2 * 3 = 6” is NOT.
The text “2 * 3 = 6” is included in the JSP response， but “10 x 5 = 50” is NOT.
